Abstract : The reports prepared during the period included the following: (1) Tradeoffs between Local and Remote Computing, (2) An Operations Research Approach for the 'Design to Cost' of a Complex Radar System, (3) A Comparative Evaluation of Versions of BASIC, (4) Description of Computer Network Model, (5) Experiments in Minicomputer Networks, (6) Computer Network Usage - Cost-Benefit Analysis, (7) On the Evaluation of Reliability and Security Measures in a Computer Network, and (8) System Evaluation Techniques for Error Detection.